Perfluorinated sulfonic acid ion-exchange membrane doped silicotungstic acid thermal stability and conductivity
- 10.2991/icaemt-15.2015.139How to use a DOI?
- Silicotungstic acid, silane coupling agents, composite membrane, thermal stability, proton conductivity
Perfluorinated sulfonic acid ion exchange membrane doped the silicotungstic acid thermal stability and thermal degradation kinetics were studied by means of thermal gravimetric analysis in a nitrogen atmosphere, the heating rate used respectively was 5, 10, 20 and 30 /min. Using the Kissinger, Flynn-Wall-Ozawa, Friedman and Starink methods, non-isothermal kinetics data of composite membrane doped the silicotungstic acid were analyzed. TG-DTG curves showed that for proton exchange composite membranes, when decomposition rates reached 5 and 10%, the lowest thermal degradation temperature respectively was 255.9 and 310.9 . The results calculated by various methods indicated that the average value of apparent activation energy of composite membrane was 144.5kJ/mol. When composite film was measured at -30 and 90 , the conductivity of film respectively was 1.42×10-6 S•cm-1 and 3.12×10-5S•cm-1.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Yi Heng Lu AU - Shuang Chun Ma AU - Ying Chen AU - Wen Quan Feng PY - 2015/08 DA - 2015/08 TI - Perfluorinated sulfonic acid ion-exchange membrane doped silicotungstic acid thermal stability and conductivity BT - Proceedings of the 2015 International Conference on Advanced Engineering Materials and Technology PB - Atlantis Press SP - 729 EP - 737 SN - 2352-5401 UR - https://doi.org/10.2991/icaemt-15.2015.139 DO - 10.2991/icaemt-15.2015.139 ID - Lu2015/08 ER -